Products / pH Indicators

Show all minimise

TROPAEOLIN O pdf-img printer-img

  • C.A.S. No.
  • 547-57-9
  • C.I. NO.
  • 14270
  • M.F.
  • C12H9N2SO5Na
  • M.W.
  • 316.27gm/mole

Specifications:

  • Solubility 0.1% (Water)
  • Clear solution
  • Transition range
  • pH 11.2 – 12.7 Yellow - Orange
  • Absorption maximum (0.1N NaOH) λmax
  • 488-493nm
  • Absorptivity (A1%/1cm in 0.1N NaOH, at λmax)
  • > 625
  • Loss on drying (110oC)
  • >550
organic structure
Site Designers - Momentum ads